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Al

Aluminium
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Aluminium was discovered by Friedrich Wöhler (Germany) in 1827. The origin of the name comes from the Latin word alumen meaning alum. It is soft, lightweight, silvery-white metal. Exposed surfaces quickly form protective oxide coating. Metal reacts violently with oxidants. Third most abundant element in the earth's crust.
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ENERGIE DI IONIZZAZIONE ED ABBONDANZA |
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Isotopo |
Massa atomica relativa |
Abbondanza (%) |
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27Al | 26.9815384(1) | 100 |
Aluminium is the most abundant metal to be found in the earth's crust, but is never found free in nature. Aluminium is obtained by electrolysis from bauxite ... Used for many purposes from airplanes to beverage cans. Too soft in its pure form so less than 1% of silicon or iron is added, which hardens and strengthens it. The price of 99.9 % pure aluminium granules is 45.70 € for 1000 g.
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POTENZIALI DI RIDUZIONE STANDARD |
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Semi-Reazione |
Eo / V |
Annotazione |
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Al3+ + 3e- Al(s) |
- 1.662 |
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Al3+ + 2e- Al+ |
- 2.76 |
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Al+ + e- Al(s) |
- 0.55 |
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AlO2- + 4H+ + 3e- Al(s) + 2H2O |
- 1.262 |
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Al(OH)3(s) + 3e- Al(s) + 3OH- |
- 2.31 |
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AlF63- + 3e- Al(s) + 6F- |
- 2.07 |
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